Abstract
In this paper, a novel cooling strategy for machining is presented: a metalworking fluid, composed of water and a polyhydric alcohol is supplied to the cutting zone at temperatures above the temperatures used for cryogenic machining, but below 0 °C. This sub-zero metalworking fluid (MWF) is applied when turning AISI 4140 at varied cutting speed. The results are compared with those obtained using emulsion, cryogenics as well as dry turning. An analysis of temperatures, forces, tool wear as well as surface roughness is carried out. The use of the novel sub-zero MWF results in low tool temperatures and tool wear. In contrast to cryogenic and dry machining, a constant surface roughness was observed in the case of severe tool wear.
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Notes
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Acknowledgment
The authors would like to thank the German Research Foundation (DFG) for the financial support within the CRC 926 ‘‘Microscale Morphology of Component Surfaces’’ and further Petrofer Chemie as well as Borg Warner Turbo Systems for the cooperation and the test materials.
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Basten, S., Kirsch, B., Hasse, H., Aurich, J.C. (2019). Turning of AISI 4140 (42CrMo4): A Novel Sub-zero Cooling Approach. In: Schmitt, R., Schuh, G. (eds) Advances in Production Research. WGP 2018. Springer, Cham. https://doi.org/10.1007/978-3-030-03451-1_31
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DOI: https://doi.org/10.1007/978-3-030-03451-1_31
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